<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>登陆页</title>
</head>
<body>
   <form action="/doLogin" method="post" >
       用户名：<input name="userName"/><br/>
       密码：<input name="password" type="password">
       <input type="hidden" name="url" th:value="${url}">
       <input type="submit" value="登陆">
   </form>
</body>
</html>